“AGACNP-BC” Study Guide: All-In-One Guide + 4 Exam Practice Test (2200 Questions), Latest for “Adult-Gerontology Acute Care Nurse Practitioner (AGACNP-BC)”, “American Nurses Credentialing Center (ANCC)”

A 60-year-old male with severe ARDS is mechanically ventilated with a PEEP of 14 cm H2O and FiO2 of 0.70. His PaO2/FiO2 ratio is consistently 120 mmHg. His plateau pressure is 28 cm H2O and his hemodynamics are currently stable. Despite optimize ventilator settings, his oxygenation remains poor. Which management strategy is indicated based on these findings?

A 70-year-old patient with urosepsis presents with oozing from intravenous sites, petechiae, and a prolonged prothrombin time. Laboratory analysis reveals a low fibrinogen level and elevated D-dimer. The patient’s mental status is deteriorating, and his serum creatinine is rising. What is the most likely mechanism linking these hematologic findings to the progression of multi-organ dysfunction?

A 45-year-old male is recovering from a major orthopedic surgery when he develops a secondary hospital-acquired pneumonia. Within 12 hours, he develops acute respiratory distress syndrome and acute kidney injury requiring continuous renal replacement therapy. Which concept best describes the rapid onset of multi-organ failure following this secondary insult?

A 62-year-old female with multiple trauma is in the hypermetabolic phase of multi-organ dysfunction syndrome. She is receiving enteral nutrition but shows persistent hyperglycemia, a negative nitrogen balance, and a rapid loss of lean body mass. Which physiological response to systemic inflammation is the primary driver of these metabolic changes?

A 55-year-old male is being treated for necrotizing pancreatitis. On day five, he exhibits generalized edema, a positive fluid balance of 6 liters, and a decreasing urine output despite adequate cardiac filling pressures. His skin appears mottled, and his capillary refill time is five seconds. What underlying pathophysiological process is primarily driving these clinical manifestations of organ dysfunction?

A 72-year-old female with chronic obstructive pulmonary disease is admitted to the intensive care unit with septic shock. Over the first 24 hours, her PaO2/FiO2 ratio decreases from 250 to 150, her platelet count drops from 150,000 to 80,000, and she requires vasopressor support to maintain a mean arterial pressure of 65 mmHg. Which interpretation of these clinical findings is most accurate regarding her risk of multi-organ dysfunction?

A 68-year-old male with a history of mesenteric ischemia is 48 hours post-laparotomy. He develops a fever of 39.0°C, tachycardia of 120 bpm, and a new requirement for mechanical ventilation. Laboratory results show an elevated lactate of 4.2 mmol/L and a rising serum creatinine. Which mechanism best explains the progression from localized ischemia to systemic multi-organ involvement in this patient?

A nurse practitioner is caring for a patient who requires a blood transfusion due to severe symptomatic anemia. The patient is alert and oriented but refuses the transfusion based on deeply held personal beliefs, despite understanding that this refusal could lead to heart failure or death. The nurse practitioner documents the refusal and continues to provide all other aspects of care. Which principle is being prioritized?

An 80-year-old patient with advanced dementia and no clear advance directive is admitted with a life-threatening physiological decline. The patient’s spouse wants “everything done,” while the patient’s adult children believe the patient would not want aggressive interventions. The nurse practitioner organizes a multidisciplinary meeting to facilitate a consensus. This action primarily addresses a conflict between which two principles?

A nurse practitioner is asked to perform an urgent bedside procedure that they have not performed in several years. Although the patient’s condition is deteriorating, the patient is currently stable enough to wait twenty minutes for a more experienced provider who is on the way. The nurse practitioner decides to wait for the colleague to ensure the procedure is performed safely. This decision most directly aligns with which ethical principle?

During a period of extreme hospital overcrowding, the nurse practitioner must decide which of two clinically unstable patients will receive the last available bed in the intensive care unit. Patient A is a 45-year-old with a high likelihood of recovery from an acute event, while Patient B is an 88-year-old with advanced multi-organ failure and a low probability of survival. The decision to admit Patient A is primarily based on which ethical framework?

A 62-year-old female is admitted with an acute exacerbation of a chronic condition. During the diagnostic workup, an incidental finding suggests a poor prognosis. The patient’s adult children pull the nurse practitioner aside and demand that the diagnosis be withheld from the patient to prevent emotional distress. The patient is alert, oriented, and asks directly about her test results. Which action by the nurse practitioner best demonstrates the principle of veracity?

A 74-year-old male is recovering from an elective abdominal aortic aneurysm repair. He is cognitively intact but refuses to participate in required physical therapy and incentive spirometry, stating he prefers to rest. The nurse practitioner explains the high risk of pulmonary complications and venous thromboembolism, but the patient continues to decline. Which ethical principle is the nurse practitioner upholding by respecting the patient’s decision after ensuring he understands the consequences?

A 55-year-old male with a history of asthma is intubated for status asthmaticus. The ventilator flow-time scalar shows that the expiratory flow does not return to the zero baseline before the next breath begins. The patient’s blood pressure is 92/60 mmHg. Which ventilator adjustment is most appropriate to address this finding?

A 68-year-old female with a history of severe COPD is admitted with an acute exacerbation. She has been on non-invasive ventilation for two hours. Her latest arterial blood gas shows a pH of 7.24, PaCO2 of 70 mmHg, and PaO2 of 55 mmHg. She is now somnolent and difficult to arouse. What is the most appropriate next step?

A 68-year-old male with a history of anterior wall myocardial infarction presents with worsening dyspnea and cool extremities. Physical examination reveals bilateral pulmonary crackles and a third heart sound. Hemodynamic monitoring via a pulmonary artery catheter shows a cardiac index of 1.8 L/min/m², a pulmonary artery occlusion pressure of 24 mmHg, and a systemic vascular resistance of 1800 dynes/sec/cm⁻⁵. Based on these clinical findings and hemodynamic parameters, which physiological state is most likely occurring?

A 58-year-old male is being treated in the intensive care unit for multiple trauma and has been mechanically ventilated for four days. The ventilator suddenly triggers a high-pressure alarm. Upon assessment, the nurse practitioner notes absent breath sounds on the left side, tracheal deviation to the right, and a sudden drop in blood pressure to 88/50 mmHg. Which intervention should be performed immediately?

A 65-year-old female with a history of chronic obstructive pulmonary disease has been intubated for 48 hours due to an acute exacerbation. A spontaneous breathing trial is initiated using a T-piece. After 15 minutes, the patient’s respiratory rate increases from 20 to 34 breaths per minute, her heart rate rises from 88 to 122 beats per minute, and she begins using accessory muscles. Her oxygen saturation is 89%. What is the most appropriate next step in her management?

A 72-year-old male with bacterial pneumonia is receiving mechanical ventilation for Acute Respiratory Distress Syndrome. Current settings include a tidal volume of 6 mL/kg of predicted body weight, PEEP of 12 cm H2O, and FiO2 of 0.80. The most recent arterial blood gas shows a pH of 7.32, PaCO2 of 48 mmHg, and PaO2 of 58 mmHg. The measured plateau pressure is 33 cm H2O. Which adjustment to the ventilator plan is most appropriate?

A 45-year-old female is recovering from a transsphenoidal resection of a pituitary adenoma. On postoperative day two, she develops polyuria with a urine output of 500 mL/hour. Laboratory results show a Serum Sodium of 154 mEq/L, Serum Osmolality of 315 mOsm/kg, and a Urine Osmolality of 140 mOsm/kg. Which condition do these laboratory results confirm?

A 64-year-old male presents with acute, severe abdominal pain, guarding, and rebound tenderness. An upright chest radiograph is performed and demonstrates a thin, radiolucent crescent-shaped shadow located between the right hemidiaphragm and the liver dullness. What is the most likely interpretation of this radiographic finding?

A 55-year-old patient in the surgical intensive care unit develops sudden tachycardia, hypotension, and oozing from intravenous puncture sites following a complex abdominal surgery. Laboratory studies show a platelet count of 42,000/mm3, a fibrinogen level of 95 mg/dL, an elevated Prothrombin Time (PT), and a significantly high D-dimer. What is the most accurate interpretation of this laboratory profile?

An 80-year-old male is admitted with a three-day history of vomiting and decreased oral intake. Laboratory results reveal a Blood Urea Nitrogen (BUN) of 58 mg/dL, Serum Creatinine of 2.8 mg/dL (baseline 1.0 mg/dL), and a fractional excretion of sodium (FENa) of 0.6%. A urinalysis shows a high specific gravity and no cellular casts. Which physiological state do these diagnostic results most likely indicate?

A 72-year-old female presents to the emergency department with sudden onset of “tearing” chest pain radiating to the back and a blood pressure of 190/110 mmHg. A contrast-enhanced computed tomography (CT) scan of the chest reveals a visible intimal flap extending from the aortic root through the ascending aorta and into the proximal descending aorta. How should the nurse practitioner interpret these imaging results?

A 68-year-old male with a history of chronic obstructive pulmonary disease presents to the intensive care unit with increased dyspnea and altered mental status. Arterial blood gas results on 40% oxygen via Venturi mask show a pH of 7.26, PaCO2 of 68 mmHg, PaO2 of 54 mmHg, and HCO3 of 31 mEq/L. Which interpretation of these laboratory findings best guides the immediate clinical management?

A 62-year-old patient with a history of chronic obstructive pulmonary disease is admitted with acute respiratory failure. Hemodynamic monitoring shows a pulmonary artery pressure of 50/25 mmHg and a pulmonary artery occlusion pressure of 10 mmHg. The calculated pulmonary vascular resistance is significantly elevated. Which of the following best describes the primary underlying hemodynamic abnormality in this clinical scenario?

A 70-year-old patient with heart failure is monitored with a pulmonary artery catheter. The nurse practitioner observes that the mixed venous oxygen saturation (SvO2) has decreased from 70% to 52% over the last two hours, while the cardiac index and arterial oxygen saturation remain unchanged. The patient is currently febrile and experiencing significant shivering. What is the most likely physiological explanation for the observed decrease in the mixed venous oxygen saturation?

A 64-year-old patient who is four hours postoperative from a coronary artery bypass graft begins to show signs of hemodynamic instability. The nurse practitioner notes that the drainage from the mediastinal tubes has slowed significantly over the last hour. Hemodynamic monitoring shows a central venous pressure of 18 mmHg, a pulmonary artery diastolic pressure of 19 mmHg, and a pulmonary artery occlusion pressure of 17 mmHg. Which condition is most consistent with this pattern of pressure equalization?

A 55-year-old patient is admitted with an acute inferior wall myocardial infarction. The patient is hypotensive with a blood pressure of 82/50 mmHg and has clear lung sounds upon auscultation. Hemodynamic monitoring reveals a central venous pressure of 16 mmHg and a pulmonary artery occlusion pressure of 8 mmHg. What is the most appropriate interpretation of these hemodynamic findings in the context of the patient’s clinical presentation?

A 72-year-old female is being managed in the intensive care unit for septic shock related to a urinary tract infection. She is currently intubated and receiving mechanical ventilation with a tidal volume of 6 mL/kg. To assess for fluid responsiveness before administering additional intravenous crystalloids, the nurse practitioner performs a passive leg raise maneuver. Which hemodynamic change would most reliably indicate that the patient will increase her stroke volume with further volume expansion?